What Does Expert Witness Mean?
An expert witness, in England, Wales, and the United State, is a person whose opinion is accepted during a trial as an expert opinion on a specific topic. They usually have an appropriate background in education, training, certification, skills, or experience to back their knowledge of a subject.
An expert witness's specialized (scientific, technical or other) opinion about evidence or facts is considered before the court within the expert's area of expertise. It is referred to as an "expert opinion." Expert witnesses can also give "expert evidence" within the area of their expertise. Their testimony may be rebutted by testimony from other expert witnesses or by other evidence or facts.